What filter does a Vicks V4600 take?
It takes the Protec PDC51 Demineralization Cartridge — OEM part number PDC51.
Vicks V4600, ultrasonic humidifier, tabletop.
Lowest verified price: none captured yet — see the notes below. The Amazon button below is the current buy route.
Buy the PDC51 on Amazon — PDC51Amazon search for the exact part number (no single listing is endorsed). Amazon price is shown on Amazon; we do not quote it here.
The part, in brief
| Part | Protec PDC51 Demineralization Cartridge |
|---|---|
| Replacement interval | Replace every 2–4 weeks or every 15–30 fillings (FiltersFast spec). |
| Per change | One cartridge in the tank cap area per change. |
| Equivalents | None verified |
Verified prices
| Option | Price | Store & shipping |
|---|
FiltersFast lists the genuine PDC51 at $19.95 but it was OUT OF STOCK when checked 2026-11-11, so no in-stock shipped price is quoted here. A Kaz parts listing showed $13.92 for PDC51V1; not treated as verified retail stock.
Full record with every price, source and date: Protec PDC51 Demineralization Cartridge page.
Finding the model number on a Vicks
Model numbers are on the bottom of the unit, starting with 'V'. Juvenile models add 'JUV' (for example V3900JUV, the Starry Night projector model).